Ganymede was a Trojan prince in Greek mythology, known for his beauty. He was the son of the king Tros of Dardania, after whom Troy took its name, and Callirrhoe.

According to a myth, Zeus turned into an eagle and abducted Ganymede, bringing him to Mount Olympus. To compensate his father, Zeus offered him the best horses possible, and told him that his son would now be immortal and serve as a cupbearer for the gods, as well as a lover for him. Tros was relieved that his son would have such an honourable position. Almost all gods were content with Ganymede, except for Hera, who felt jealousy. Zeus eventually turned Ganymede into the constellation Aquarius (the water-bearer) in the sky.